Furnace for heating metals



2 Sheets-Sheet 1.

(No Model.)

0. PAYEN.

FURNACE FOR HEATING METALS.

Patented Feb. 26, 1889.

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FURNACE FOR HEATING METALS.

No. 398,443. Patented Feb. 26, 1889,.

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UNITE STATES PATENT EEicE.

CLEMENT PAYEN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE ELECTRICSTORAGE BATTERY COMPANY, OF GLOUCESTER CITY, NEW

JERSEY.

FURNACE FOR HEATING METALS.

SPECIFICATION forming part Of Letters Patent NO. 398,443, dated February26, 1889.

Application filed January 7, 1888. Serial No. 260,041. (No model.)

To all whom it may concern.-

Be it known that I, CLEMENT PAYEN, a citizen of the Republic of France,but now residing at the city of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Furnaces for Fusing and Melting Metals, &c., ofwhich improvements the following is a specification.

My invention relates to an improved furnace for fusing or melting metalsor the salts of metals, such as lead, zinc, iron, or other substances ormaterials.

This invention consists of a furnace provided with a chamber in which acrucible is pivotally supported, and the dome-shaped top of said chamberforming the cover of the crucible when in position for receivingmaterial to be treated, the crucible being operated by a lever from theoutside of the furnace, whereby it may be readily tilted for dischargingthe fused or melted mass into a suitable receptacle for furthertreatment.

My invention further consists of certain de tails of construction orcombinations of parts of the furnace, to be hereinafter fully described.

In the accompanying drawings, forming part hereof, Figure 1 is avertical central section through my improved furnace, showing thecrucible pivotally supported within a chamber having a dome-shaped topand said crucible being operated by means of a lever from the outside,and Fig. 2 is a horizontal section on the lines 2c :r and y y of Fig. 1.

Referring to the drawings for a further description of the invention, Ais the furnace, constructed of brickwork or other suitable material andof any desired form or shape.

B is a dome-shaped arch, constructed of brick in the upper part of thefurnace, and said arch forming the cover of the crucible when inposition to receive material to be treated. The arch B is supported uponan annular ring, I), which is held in position by means of columns C,arranged at suitable distances apart and mounted on a ring, (2, securedin the brick-Work, and the whole forming the chamber of the furnace.

D is the grate, of any ordinary construction, supported in position inthe lower part of the furnace on metallic supporting-rims dand d.

D is a short horizontal chute or aperture closed from the outside by adoor, (Z through which chute, when the door is opened, the fuel isadmitted to the grate for firing the furnace.

D" is an aslrpit beneath the grate, closed from the outside by means ofa door, 05'.

F is the draft-flue, through which the fumes, gases, and smoke areconveyed tothe chimney F and thence into the open air.

G is a feedinghopper extending downward into the brick-work of thefurnace at preferably an angle thereto, and having a removable stopper,g.

H is a vertical sliding door, made of iron or other m a terial, andhaving at each end a flange, h, with a turned-in lip, h, as shown inFig. 2, which door H fits snugly into the recessed frame I-l, secured tothe front of the furnace. The door H is raised and lowered by means of arope or chain, 71 passing around a pulley, h or by any other ordinarywelLknown means, to allow of the discharge of the treated material whenthe crucible has been tilted by means of a lever, to be presentlydescribed.

I is a metallic semicircular pot having an inner rim, t', formedintegral therewith and extending almost entirely around the upperperiphery thereof, and mounted on and secured to this rim by means ofbolts 7 and nuts 2' is a metallic ring, 1' The pot I is journaled in.trunnions 4;, supported on the metallic ring 0. One of the journals 2'held in the trunnions i is prolonged laterally, and to the extremity ofwhich is attached a lever, 2"", operated from the outside of thefurnace, to cause the discharge of the material treated in the crucibleJ. The crucible J is constructed, preferably, of porcelain, and aroundthe exterior surface of which is provided a layer, j, of amianthus,asbestus, or other suitable material, and in the space between thelayerj and the metallic pot I is inserted a layer or film of sand, j

The exterior and interior surfaces of the porcelain crucible should beperfectly smooth, and maintained in that condition free from fracture orindentations, in order that in the expansion thereof when heated upbreakage maybe entirely obviated. The layer of sand between the coveringof amianth us or asbestus surrounding the porcelain crucible J and themetallic pot I performs the function, in a satisfactory manner, of anelastic cushion to compensate for whatever expansion of the crucible maytake place when heated and the fusing or melting operation is going on.

Having particularly pointed out the special features of my improvedfurnace, I will now describe, briefly, the mode of operating the samefor the fusing or melting of metals or other substances. The furnacebeing tired in any ordinary manner, the flames therefrom will be drawnin an upward direction by the chimney-draft around the metallic pot 1,heating up the'same, as well as the crucible J The stopper 9 ot themetallic chute G may i then be drawn out and the material to be treatedor fused charged into the crucible J through this chute G, and whensufficiently charged the stopper 9 will be again fitted into the mouthof the chute, and the operation continued until the material undergoingtreatment has reached a liquid or molten state or condition, when it maybe readily discharged from the crucible J into any suitable receptaclefor further treatment by the attendant in charge first raising thevertical sliding door H by means of the handling device In,

attached to the rope or chain hiwhich passes over the pulley its, andthen drawing the lever i in to a horizontal position, and therebycausing the crucible J to occupy the position as indicated in dottedlines in Fig. 1.

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. The herein-described furnace provided with a chamber having an archedroof, an incased crucible piy otally supported within said chamber, andsaid roof forming a cover for said crucible, and a lever operated fromthe outside of the furnace for tilting said crucible, substantially asand for the purposes set forth.

2. The herein-described furnace provided with a chamber having an archedroof, a chute extending downward into said chamber, a crucible pivotedto trunnions supported within said chamber, and a lever actuated fromthe outside of the furnace for tilting the same, substai'itially as andfor the purposes set forth.

In witness whereof I have hereunto set my hand in the presence of twosubscribing wit nesses.

JLEMENT PAYEN.

\Vitnesses:

CHAs. HART, THOMAS M. SMITH.

